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CAS NO.7758-29-4
| Sodium tripolyphosphate Basic information |
| detergent builders chemical property Application methods of production |
| Product Name: | Sodium tripolyphosphate |
| Synonyms: | armofos;empiphosstp-d;freez-gardfp19;natriumtripolyphosphat;poly;polygon;rhodiaphosh5;rhodiaphoslv |
| CAS: | 7758-29-4 |
| MF: | Na5O10P3 |
| MW: | 367.86 |
| EINECS: | 231-838-7 |
| Product Categories: | INORGANIC & ORGANIC CHEMICALS;FOOD ADDITIVES;Food and Feed Additive;Inorganics;Inorganic Chemicals;Water Ttreatment Chemicals;metal phosphate compound |
| Mol File: | 7758-29-4.mol |
|
|
|
| Sodium tripolyphosphate Chemical Properties |
| mp | 622 °C |
| solubility | H2O: may be clear to slightly hazy |
| Water Solubility | 20 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 14,8697 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong acids. Hygroscopic. |
| CAS DataBase Reference | 7758-29-4(CAS DataBase Reference) |
| EPA Substance Registry System | Triphosphoric acid, pentasodium salt(7758-29-4) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-24/25 |
| WGK Germany | 1 |
| RTECS | YK4570000 |
| F | 3 |
| Hazardous Substances Data | 7758-29-4(Hazardous Substances Data) |
| MSDS Information |
| Provider | Language |
|---|---|
| Sodium tripolyphosphate | English |
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| Sodium tripolyphosphate Usage And Synthesis |
| detergent builders |
Sodium tripolyphosphate is a kind of excellent detergent additives, the largest amount of detergent in the production process is set, its role has four aspects: 1. the effect of heavy metal ion chelate: heavy metal ions in the process of washing water, can combine detergent molecules to form insoluble metal salt,reduce the washing ability, even complete loss of function. Therefore, it is necessary to add chelating agent, which can make water containing heavy metal ions into harmless substancesin the detergent. Sodium tripolyphosphate has strong chelation for heavy metal ions, sealing them and eliminating the adverse effects on the washing. In addition, it can capture dirt contained various metals in washing process, playing the role of dissociation of dirt, used as soap synergist and preventing bar soap grease precipitation and bloom. 2. The dirt on his gum, emulsifying and dispersing effect: Dirt often contain body fluids (mainly protein and fat like substances), also contains the sand from the outside world, dust etc.. Sodium tripolyphosphate has the expansion, solubilization on dirt protein, and the effect of the glue solution; emulsification of fat promotes; has dispersing effect on solid dirt, strong emulsification of lubricating oil and fat, can be used to adjust the pH value of buffer liquid soap. 3. prevent caking of detergent: Synthetic detergent powder is hygroscopic, such as stored in high humidity areas, it is necessary to caking phenomenon. Using detergent agglomerates is inconvenient. While the water absorption of sodium tripolyphosphate formed the hexahydrate, with characteristics of dry. When there is extensive use of detergent formulations, it can serve to prevent caking phenomenon caused by moisture absorption, keeping dry granular of the synthetic detergent. 4. It has a larger buffer alkaline washing solution, pH value is maintained at about 9.4, which is conducive to the removal of acidic dirt. The above information is edited by the Chemicalbook Hayan. |
| chemical property | It is white powder, soluble in water, its water solution is alkaline. |
| Application |
1. It is used for meat processing, synthetic detergent formulations, textile dyeing, also used as dispersing agent, solvent etc. 2. It is used as soft water, also used in confectionery industry. 3. It is used as power stations, locomotive vehicle, boiler and a fertilizer plant cooling water treatment, water softener. It has strong ability to Ca2+ collaterals, per 100g to complex 19.5g calcium , and because SHMP chelation and adsorption dispersion destroyed the normal process of calcium phosphate crystal growth, it prevents the formation of calcium phosphate scale. Dosage is 0.5 mg / L, prevent that scaling rate is up to 95% ~ 100%. 4. Modifier; emulsifier; buffer; chelating agent; stabilizer. Mainly for canned ham tenderization; canned broad beans in the Yuba softening. Can also be used as soft water, pH regulator and thickening agent. 5. It is used for synergist for soap and preventing bar soap grease precipitation and bloom. It has strong emulsification of lubricating oil and fat. It can be used for adjusting the value of pH of buffer liquid soap. Industrial water softener. Pre tanning agent. Dyeing auxiliaries. Paint, kaolin, magnesium oxide, calcium carbonate, such as industrial in the preparation of suspensions of dispersant. Drilling mud dispersant. In paper industry used as anti oil agents. 6. Sodium tripolyphosphate is used for detergents. As additives, synergist for soap and preventing bar soap crystallization and bloom, industrial water soft water, pre tanning agent, dyeing auxiliaries, well digging mud control agent, paper with oil on preventing agent, paint, kaolin, magnesium oxide, calcium carbonate, such as hanging floating fluid treatment effective dispersant. Food grade sodium tripolyphosphate as a variety of meat products, food improver, the clarification of the beverage additives. 7. Quality improver to improve food complexed metal ions, pH value, increasing ionic strength, thereby improving food focus and water holding capacity. Provision of China can be used for dairy products, fish products, poultry products, ice cream and instant noodles, maximum dose is 5.0g/kg; in canned, maximum use juice (taste) beverages and vegetable protein beverage is 1.0g/kg. |
| methods of production |
1. recrystallization The industrial sodium tripolyphosphate dissolved in 60 ~ 70℃, water solution prepared from 17% to 22%, and filtered to remove the insoluble impurities; and then concentrated by vacuum, cooling crystallization, separation, drying to obtain the product. Hot phosphoric acid in two steps In neutralization tank with the consumption of soda ash and food grade phosphoric acid with 50% ~ 60% solution, neutralizing liquid into the intermediate storage tank, pump sent to the spray drying tower for spray drying; powder sent to rotary polymerization furnace, heating to 540 ~ 580 ℃ and dehydration polymerization, in air cooling collapse into powder. In aqueous solution of anhydrous ethanol, precipitates six water. 5Na2CO3 +6H3PO4→4Na2HPO4 +2NaH2PO4 +5CO2+5H2O 4Na2HPO4 +2NaH2PO4→2Na5P3O10 +4H2O 2. Two-step thermal process of phosphoric acid will place(55% ~ 60%) phosphate solution via measuring the neutralization tank, heating and the agitator is started under stirring slowly, adding soda ash for neutralization reaction, neutralization tank to maintain 2 molecular hydrogen phosphate disodium on 1 molecular sodium dihydrogen phosphate ratio. The mixed liquid and the high groove into the spray, drying tower, drying and after drying of orthophosphate dry from the tower bottom discharge sent to rotary polymerization furnace, carried away by a gas stove a few dry by the cyclone dust collector to be recycled. Dry phosphate Is in the furnace and at temperature of 350 to 450℃ polymerization reaction generated sodium tripolyphosphate, after cooling, crushing of refined sodium tripolyphosphate. 5Na2CO3 +6H3PO4→4Na2HPO4 +2NaH2PO4 +5CO2+5H2O 4Na2HPO4 +2NaH2PO4→2Na5P3O10 +4H2O Wet process phosphoric acid one step will rock phosphate and sulfate reaction of phosphoric acid and soda ash used in removing fluoride can remove the fluosilicic acid, in the desulfurization tank with barium carbonate to remove sulfate, in order to reduce the sodium sulfate content in phosphoric acid. Then using sodium carbonate for neutralization. After filtration to a large number of iron, aluminum and other impurities. The fine tuning, filtering, income of containing a certain proportion of hydrogen phosphate, sodium and sodium dihydrogen phosphate solution in the evaporator concentrate to comply with requirements of the polymeric material spraying. The slurry sprayed into the rotary polymerization furnace, by hot air spray drying and aggregation. After cooling, crushing, sieving of sodium tripolyphosphate product. Ca5F(PO4)3+5H2SO4+10H2O→3H3PO4+5CaSO4.2H2O+HF 6H3PO4+5Na2CO3→4Na2HPO4+2NaH2PO4+5H2O+5CO2↑ 4Na2HPO4+2NaH2PO4→2Na5P3O10+4H2O 3. Hydrogen phosphate disodium salt and sodium dihydrogen phosphate are mixed and heated to 110℃dehydration and continue heating to 540 ~ 580℃, dehydration and stable particle type; as heating to 620 ℃, melting cooling to 550 ℃, then cooled in the air, is disintegrated into the powder type. Ethanol in water solution to get six water. 4. Sodium dihydrogen phosphate method will put dihydrogen phosphate adding polymerizer, heating to 700 ℃, dehydrated 15 ~ 30min. Then quenched in cold water and processing. Phosphoric anhydride method After yellow phosphorus is fused heating tank, enters the combustion furnace, oxided of phosphorus and precipitation. Cools, remove phosphoric anhydride (P2O5). Phosphoric anhydride and sodium carbonate according to 1: 0.8 (mol) cool in a blender mixing into graphite crucible. In 750 to 800 ℃ for indirect heating, dehydration after polymerization to get six partial sodium phosphate melt. Put it into the intraday quench cooling, and get the glass and transparent sodium hexametaphosphate. |
| Chemical Properties | white or colourless crystals, granules or powder |
| Sodium tripolyphosphate Preparation Products And Raw materials |
| Sodium tripolyphosphate Basic information |
| detergent builders chemical property Application methods of production |
| Product Name: | Sodium tripolyphosphate |
| Synonyms: | armofos;empiphosstp-d;freez-gardfp19;natriumtripolyphosphat;poly;polygon;rhodiaphosh5;rhodiaphoslv |
| CAS: | 7758-29-4 |
| MF: | Na5O10P3 |
| MW: | 367.86 |
| EINECS: | 231-838-7 |
| Product Categories: | INORGANIC & ORGANIC CHEMICALS;FOOD ADDITIVES;Food and Feed Additive;Inorganics;Inorganic Chemicals;Water Ttreatment Chemicals;metal phosphate compound |
| Mol File: | 7758-29-4.mol |
|
|
|
| Sodium tripolyphosphate Chemical Properties |
| mp | 622 °C |
| solubility | H2O: may be clear to slightly hazy |
| Water Solubility | 20 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 14,8697 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong acids. Hygroscopic. |
| CAS DataBase Reference | 7758-29-4(CAS DataBase Reference) |
| EPA Substance Registry System | Triphosphoric acid, pentasodium salt(7758-29-4) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-24/25 |
| WGK Germany | 1 |
| RTECS | YK4570000 |
| F | 3 |
| Hazardous Substances Data | 7758-29-4(Hazardous Substances Data) |
| MSDS Information |
| Provider | Language |
|---|---|
| Sodium tripolyphosphate | English |
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| Sodium tripolyphosphate Usage And Synthesis |
| detergent builders |
Sodium tripolyphosphate is a kind of excellent detergent additives, the largest amount of detergent in the production process is set, its role has four aspects: 1. the effect of heavy metal ion chelate: heavy metal ions in the process of washing water, can combine detergent molecules to form insoluble metal salt,reduce the washing ability, even complete loss of function. Therefore, it is necessary to add chelating agent, which can make water containing heavy metal ions into harmless substancesin the detergent. Sodium tripolyphosphate has strong chelation for heavy metal ions, sealing them and eliminating the adverse effects on the washing. In addition, it can capture dirt contained various metals in washing process, playing the role of dissociation of dirt, used as soap synergist and preventing bar soap grease precipitation and bloom. 2. The dirt on his gum, emulsifying and dispersing effect: Dirt often contain body fluids (mainly protein and fat like substances), also contains the sand from the outside world, dust etc.. Sodium tripolyphosphate has the expansion, solubilization on dirt protein, and the effect of the glue solution; emulsification of fat promotes; has dispersing effect on solid dirt, strong emulsification of lubricating oil and fat, can be used to adjust the pH value of buffer liquid soap. 3. prevent caking of detergent: Synthetic detergent powder is hygroscopic, such as stored in high humidity areas, it is necessary to caking phenomenon. Using detergent agglomerates is inconvenient. While the water absorption of sodium tripolyphosphate formed the hexahydrate, with characteristics of dry. When there is extensive use of detergent formulations, it can serve to prevent caking phenomenon caused by moisture absorption, keeping dry granular of the synthetic detergent. 4. It has a larger buffer alkaline washing solution, pH value is maintained at about 9.4, which is conducive to the removal of acidic dirt. The above information is edited by the Chemicalbook Hayan. |
| chemical property | It is white powder, soluble in water, its water solution is alkaline. |
| Application |
1. It is used for meat processing, synthetic detergent formulations, textile dyeing, also used as dispersing agent, solvent etc. 2. It is used as soft water, also used in confectionery industry. 3. It is used as power stations, locomotive vehicle, boiler and a fertilizer plant cooling water treatment, water softener. It has strong ability to Ca2+ collaterals, per 100g to complex 19.5g calcium , and because SHMP chelation and adsorption dispersion destroyed the normal process of calcium phosphate crystal growth, it prevents the formation of calcium phosphate scale. Dosage is 0.5 mg / L, prevent that scaling rate is up to 95% ~ 100%. 4. Modifier; emulsifier; buffer; chelating agent; stabilizer. Mainly for canned ham tenderization; canned broad beans in the Yuba softening. Can also be used as soft water, pH regulator and thickening agent. 5. It is used for synergist for soap and preventing bar soap grease precipitation and bloom. It has strong emulsification of lubricating oil and fat. It can be used for adjusting the value of pH of buffer liquid soap. Industrial water softener. Pre tanning agent. Dyeing auxiliaries. Paint, kaolin, magnesium oxide, calcium carbonate, such as industrial in the preparation of suspensions of dispersant. Drilling mud dispersant. In paper industry used as anti oil agents. 6. Sodium tripolyphosphate is used for detergents. As additives, synergist for soap and preventing bar soap crystallization and bloom, industrial water soft water, pre tanning agent, dyeing auxiliaries, well digging mud control agent, paper with oil on preventing agent, paint, kaolin, magnesium oxide, calcium carbonate, such as hanging floating fluid treatment effective dispersant. Food grade sodium tripolyphosphate as a variety of meat products, food improver, the clarification of the beverage additives. 7. Quality improver to improve food complexed metal ions, pH value, increasing ionic strength, thereby improving food focus and water holding capacity. Provision of China can be used for dairy products, fish products, poultry products, ice cream and instant noodles, maximum dose is 5.0g/kg; in canned, maximum use juice (taste) beverages and vegetable protein beverage is 1.0g/kg. |
| methods of production |
1. recrystallization The industrial sodium tripolyphosphate dissolved in 60 ~ 70℃, water solution prepared from 17% to 22%, and filtered to remove the insoluble impurities; and then concentrated by vacuum, cooling crystallization, separation, drying to obtain the product. Hot phosphoric acid in two steps In neutralization tank with the consumption of soda ash and food grade phosphoric acid with 50% ~ 60% solution, neutralizing liquid into the intermediate storage tank, pump sent to the spray drying tower for spray drying; powder sent to rotary polymerization furnace, heating to 540 ~ 580 ℃ and dehydration polymerization, in air cooling collapse into powder. In aqueous solution of anhydrous ethanol, precipitates six water. 5Na2CO3 +6H3PO4→4Na2HPO4 +2NaH2PO4 +5CO2+5H2O 4Na2HPO4 +2NaH2PO4→2Na5P3O10 +4H2O 2. Two-step thermal process of phosphoric acid will place(55% ~ 60%) phosphate solution via measuring the neutralization tank, heating and the agitator is started under stirring slowly, adding soda ash for neutralization reaction, neutralization tank to maintain 2 molecular hydrogen phosphate disodium on 1 molecular sodium dihydrogen phosphate ratio. The mixed liquid and the high groove into the spray, drying tower, drying and after drying of orthophosphate dry from the tower bottom discharge sent to rotary polymerization furnace, carried away by a gas stove a few dry by the cyclone dust collector to be recycled. Dry phosphate Is in the furnace and at temperature of 350 to 450℃ polymerization reaction generated sodium tripolyphosphate, after cooling, crushing of refined sodium tripolyphosphate. 5Na2CO3 +6H3PO4→4Na2HPO4 +2NaH2PO4 +5CO2+5H2O 4Na2HPO4 +2NaH2PO4→2Na5P3O10 +4H2O Wet process phosphoric acid one step will rock phosphate and sulfate reaction of phosphoric acid and soda ash used in removing fluoride can remove the fluosilicic acid, in the desulfurization tank with barium carbonate to remove sulfate, in order to reduce the sodium sulfate content in phosphoric acid. Then using sodium carbonate for neutralization. After filtration to a large number of iron, aluminum and other impurities. The fine tuning, filtering, income of containing a certain proportion of hydrogen phosphate, sodium and sodium dihydrogen phosphate solution in the evaporator concentrate to comply with requirements of the polymeric material spraying. The slurry sprayed into the rotary polymerization furnace, by hot air spray drying and aggregation. After cooling, crushing, sieving of sodium tripolyphosphate product. Ca5F(PO4)3+5H2SO4+10H2O→3H3PO4+5CaSO4.2H2O+HF 6H3PO4+5Na2CO3→4Na2HPO4+2NaH2PO4+5H2O+5CO2↑ 4Na2HPO4+2NaH2PO4→2Na5P3O10+4H2O 3. Hydrogen phosphate disodium salt and sodium dihydrogen phosphate are mixed and heated to 110℃dehydration and continue heating to 540 ~ 580℃, dehydration and stable particle type; as heating to 620 ℃, melting cooling to 550 ℃, then cooled in the air, is disintegrated into the powder type. Ethanol in water solution to get six water. 4. Sodium dihydrogen phosphate method will put dihydrogen phosphate adding polymerizer, heating to 700 ℃, dehydrated 15 ~ 30min. Then quenched in cold water and processing. Phosphoric anhydride method After yellow phosphorus is fused heating tank, enters the combustion furnace, oxided of phosphorus and precipitation. Cools, remove phosphoric anhydride (P2O5). Phosphoric anhydride and sodium carbonate according to 1: 0.8 (mol) cool in a blender mixing into graphite crucible. In 750 to 800 ℃ for indirect heating, dehydration after polymerization to get six partial sodium phosphate melt. Put it into the intraday quench cooling, and get the glass and transparent sodium hexametaphosphate. |
| Chemical Properties | white or colourless crystals, granules or powder |
| Sodium tripolyphosphate Preparation Products And Raw materials |